Finding the Fourth Proportional to 78,209.68, 107,935.08 and 44,674.96
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Solution
The fourth proportional to 78,209.68, 107,935.08 and 44,674.96 is: 61,654.71
Step by Step Solution
- Step 1: Write the proportion equation
78,209.68 : 107,935.08 = 44,674.96 : x - Step 2: Convert to fraction form
78,209.68/107,935.08 = 44,674.96/x - Step 3: Cross multiply
78,209.68x = 107,935.08 × 44,674.96 - Step 4: Simplify right side
78,209.68x = 4,821,995,381.60 - Step 5: Solve for x
x = 4,821,995,381.60/78,209.68 - Step 6: Final answer
x = 61,654.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.